Here we discuss the properties of star cluster winds in the supercritical, catastrophic cooling regime. We demonstrate that catastrophic cooling inhibits superwinds and that after a rapid phase of accumulation of the ejected material within the star-forming volume, a new stationary isothermal regime, supported by the ionizing radiation from the

We report on new R-band photometry of the outbursting black hole candidate XTE J1118+480 (ATEL #383, #384) obtained with the 4.2m WHT at the Observatorio del Roque de los Muchachos (La Palma) and with the FLWO 1.2m telescope on Mt. Hopkins. We measure the following average magnitudes: Feb 20.19 (UT), R=16.94 +/- 0.06; Feb 21.18, R=17.41 +/- 0.06

The software package CAOS (code for adaptive optics systems) described in this paper is a software ensemble of modules designed for end-to-end simulation of generic astronomical adaptive optics (AO) systems, including a complete atmosphere turbulence model, sodium laser-guide star upward and downward propagation, observed object definition, Shack

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The solar photospheric carbon abundance has been determined from [C I], C I, CH vibration-rotation, CH A-X electronic and C2 Swan electronic lines by means of a time-dependent, 3D, hydrodynamical model of the solar atmosphere. Departures from LTE have been considered for the C I lines. These turned out to be of increasing importance for stronger